# CVE-2020-7810: HandySoft ActiveX File Download and Execution Vulnerability

> Remote attackers can execute arbitrary code by tricking users into visiting a crafted webpage that exploits an insecure ActiveX control in HandySoft Groupware.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 7 Aug 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-h2gw-wr24-mgw2

## What is CVE-2020-7810?

CVE-2020-7810 is a high-severity code injection vulnerability in Handysoft, Inc. hslogin2.dll, published on 7 Aug 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

hslogin2.dll ActiveX Control in Groupware contains a vulnerability that could allow remote files to be downloaded and executed by setting the arguments to the activex method. This is due to a lack of integrity verification of the policy files referenced in the update process, and a remote attacker could induce a user to crafted web page, causing damage such as malicious code infection.

Weakness: CWE-354 (Improper Validation of Integrity Check Value), CWE-353 (Missing Support for Integrity Check)

## Which versions are affected by CVE-2020-7810?

It affects 1 product.


Products: Handysoft Hslogin2.dll.

## How do I fix CVE-2020-7810?

No fix has been published for CVE-2020-7810 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-7810 being exploited?

There is no known exploitation of CVE-2020-7810 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-7810 and fix it if it is affected.

What it is: CVE-2020-7810 is a high-severity code injection vulnerability in Handysoft, Inc. hslogin2.dll, published on 7 Aug 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-7810 in the wild and no public exploit code.

Affected product: Handysoft, Inc. hslogin2.dll. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-7810/ (Markdown: https://insights.sbomify.com/CVE-2020-7810/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-7810
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-7810
- OSV: https://osv.dev/vulnerability/CVE-2020-7810

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-7810/
Summaries are generated and may contain mistakes; the official description above is the record.